EP 3017625 A4 20170531 - ENERGY SAVING FUNCTIONALITY FOR SMALL CELLS IN E-UTRA AND E-UTRAN
Title (en)
ENERGY SAVING FUNCTIONALITY FOR SMALL CELLS IN E-UTRA AND E-UTRAN
Title (de)
ENERGIESPARENDE FUNKTIONALITÄT FÜR KLEINE ZELLEN IN E-UTRA UND E-UTRAN
Title (fr)
FONCTIONNALITÉ D'ÉCONOMIE D'ÉNERGIE POUR PETITES CELLULES DANS DES RÉSEAUX E-UTRA ET E-UTRAN
Publication
Application
Priority
- US 201361842468 P 20130703
- US 201414321810 A 20140702
- CN 2014081586 W 20140703
Abstract (en)
[origin: US2015009877A1] Apparatus and method are provided for small cell energy saving. In one novel aspect, switch-off-request is broadcasted by the small cell detecting the low-load condition. The small cells upon receiving the switch-off-request message enter the frozen state, which prevents the small cells from switching off. In another novel aspect, the small cell in the low-load condition request measurement reports from the UEs. The UEs replies with the measurement-reports message, which includes the detected neighboring IDs and the UE's traffic load. The low-load small cell includes the information derived from the measurement-reports in the switch-off-request message. In another novel aspect, the small cell broadcasts the switch-on-request message. Upon receiving switch-on-acknowledge messages from switched-off neighboring small cells, the small cell selects one or more target cells to send the cell-activation-request. The switched-off small cells, upon receiving the request to switch-on, uses a cost function to determine whether to switch on.
IPC 8 full level
H04W 28/08 (2009.01); H04W 36/00 (2009.01); H04W 36/16 (2009.01); H04W 52/02 (2009.01); H04W 84/04 (2009.01)
CPC (source: EP US)
H04W 36/0072 (2013.01 - EP US); H04W 36/165 (2013.01 - EP US); H04W 52/0206 (2013.01 - EP US); H04W 36/0058 (2018.07 - EP US); H04W 84/045 (2013.01 - EP US); Y02D 30/70 (2020.08 - EP US)
Citation (search report)
- [X] CN 101977403 A 20110216 - UNIV XIDIAN
- [X] EUNSUNG OH ET AL: "Dynamic Base Station Switching-On/Off Strategies for Green Cellular Networks", IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 12, no. 5, 1 May 2013 (2013-05-01), pages 2126 - 2136, XP011511581, ISSN: 1536-1276, DOI: 10.1109/TWC.2013.032013.120494
- [A] KAZUMI KUMAZOE ET AL: "Multiple Station Aggregation Procedure for Radio-On-Demand WLANs", BROADBAND, WIRELESS COMPUTING, COMMUNICATION AND APPLICATIONS (BWCCA), 2012 SEVENTH INTERNATIONAL CONFERENCE ON, IEEE, 12 November 2012 (2012-11-12), pages 156 - 161, XP032311692, ISBN: 978-1-4673-2972-9, DOI: 10.1109/BWCCA.2012.53
- See references of WO 2015000424A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2015009877 A1 20150108; US 9565628 B2 20170207; BR 112016000020 A2 20170829; CN 105532032 A 20160427; CN 105532032 B 20190709; EP 3017625 A1 20160511; EP 3017625 A4 20170531; WO 2015000424 A1 20150108
DOCDB simple family (application)
US 201414321810 A 20140702; BR 112016000020 A 20140703; CN 2014081586 W 20140703; CN 201480038024 A 20140703; EP 14819357 A 20140703